Search found 48 matches

by human890209
Tue Sep 25, 2018 2:35 am
Forum: ESP32 Arduino
Topic: ? Any Wireless Alternative for Serial/I2C/SPI ?
Replies: 3
Views: 887

? Any Wireless Alternative for Serial/I2C/SPI ?

Hi, I used to use Arduino Boards, and I succeed to make my sketch working with ESP32. I'm using Serial and I2C to connect my boards, so multiple boards could send message and data to each other. I never tried any Wifi Shield of Arduino before. I know ESP32 got Wifi and Bluetooth on board. I searched...
by human890209
Mon Sep 17, 2018 1:14 am
Forum: General Discussion
Topic: How to reset all the eFuse? What does "secure boot check fail" means?
Replies: 8
Views: 3319

Re: How to reset all the eFuse? What does "secure boot check fail" means?

Hi, @ESP_Angus
C:\msys32\home\human\esp\esp-idf>git describe --tags
v3.1
by human890209
Thu Sep 13, 2018 1:26 pm
Forum: Report Bugs
Topic: [ESP32] FlashDownloadTool_v3.6.4 [Win10x64] Report Error after enable Flash Encryption
Replies: 7
Views: 2878

Re: [ESP32] FlashDownloadTool_v3.6.4 [Win10x64] Report Error after enable Flash Encryption

Hi, @costaud
I won't try the new version until you tell me you succeeded with both secure boot and flash encryption enabled. :mrgreen:
Buying new dev boards takes both time and money. :D
by human890209
Thu Sep 13, 2018 1:16 pm
Forum: General Discussion
Topic: How to reset all the eFuse? What does "secure boot check fail" means?
Replies: 8
Views: 3319

Re: How to reset all the eFuse? What does "secure boot check fail" means?

Hi, @ESP_Angus Before this step, your ESP32 had FLASH_CRYPT_CNT set to 2 bits (0b00000011), and ABS_DONE_0 was set to zero. And no secure boot bootloader had ever been run on the board. Do I understand correctly? Yes, the secure boot is never been tested before the final test which failed. How did y...
by human890209
Thu Sep 13, 2018 2:40 am
Forum: Report Bugs
Topic: [ESP32] FlashDownloadTool_v3.6.4 [Win10x64] Report Error after enable Flash Encryption
Replies: 7
Views: 2878

Re: [ESP32] FlashDownloadTool_v3.6.4 [Win10x64] Report Error after enable Flash Encryption

Hi, @costaud Even the flash encryption key is read/write protected, but if the FLASH_CRYPT_CNT is not write protected and secure boot is not enabled, flash encryption will be ineffective. The best way to figure out the eFuse setting result is run espefuse.py summary after using the FlashDownloadTool...
by human890209
Thu Sep 13, 2018 2:31 am
Forum: General Discussion
Topic: How to reset all the eFuse? What does "secure boot check fail" means?
Replies: 8
Views: 3319

Re: How to reset all the eFuse? What does "secure boot check fail" means?

Hi, @ESP_Angus I built the bootloader.bin with One-time Flash option which is suggested in the Secure Boot guide. My dev boards didn't enable Secure Boot before that, I checked them with espefuse.py ** summary before testing secure boot, cause I test flash encryption before this test. The ABS_DONE_0...
by human890209
Mon Sep 10, 2018 2:51 pm
Forum: Report Bugs
Topic: Verify Bug for [espsecure.py] don't know if Secure Boot is okay
Replies: 2
Views: 1207

Verify Bug for [espsecure.py] don't know if Secure Boot is okay

Today, I tested the secure boot with flash encryption of ESP-IDF, I use a simple example and follow the instructions step by step. Before that I tested the flash encryption only, I succeeded. But enabled both, I got: secure boot check fail I bricked 2 Dev boards with the same monitor logging results...
by human890209
Mon Sep 10, 2018 2:32 pm
Forum: General Discussion
Topic: How to reset all the eFuse? What does "secure boot check fail" means?
Replies: 8
Views: 3319

Re: How to reset all the eFuse? What does "secure boot check fail" means?

Hi, @Mr_red I checked the bootloader's size before flash it, cause the instruction mentioned about that. It's smaller than that (<16k), cause I changed the settings for bootloader logging. And I just tested the Verify function of espsecure.py which is in the bundle of esptool. I've found that espsec...
by human890209
Mon Sep 10, 2018 9:54 am
Forum: General Discussion
Topic: How to reset all the eFuse? What does "secure boot check fail" means?
Replies: 8
Views: 3319

How to reset all the eFuse? What does "secure boot check fail" means?

Hi, I did some tests about secure boot and flash encryption. The result is not 100% perfect, but I actually bricked 2 dev boards. I'm wondering if there is a way to reset the eFuse to factory setting? which I think may not harm the data in flash, cause the secure boot and flash encryption will not p...